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Latent growth models matched to research questions to answer questions about dynamics of change in multiple processes.


ABSTRACT: Given theoretical and methodological advances that propose hypothesis about change in one or multiple processes, analytical methods for longitudinal data have been developed that provide researchers with various options for analyzing change over time. In this paper, we revisited several latent growth curve models that may be considered to answer questions about repeated measures of continuous variables, which may be operationalized as time-varying covariates or outcomes.To illustrate each of the models discussed and how to interpret parameter estimates, we present examples of each method discussed using cognitive and blood pressure measures from a longitudinal study of aging, the Origins of Variance in the Old-Old study.Although statistical models are helpful tools to test theoretical hypotheses about the dynamics between multiple processes, the choice of model and its specification will influence results and conclusions made.

SUBMITTER: Muniz-Terrera G 

PROVIDER: S-EPMC5325805 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature

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Latent growth models matched to research questions to answer questions about dynamics of change in multiple processes.

Muniz-Terrera Graciela G   Robitaille Annie A   Kelly Amanda A   Johansson Boo B   Hofer Scott S   Piccinin Andrea A  

Journal of clinical epidemiology 20160914


<h4>Objectives</h4>Given theoretical and methodological advances that propose hypothesis about change in one or multiple processes, analytical methods for longitudinal data have been developed that provide researchers with various options for analyzing change over time. In this paper, we revisited several latent growth curve models that may be considered to answer questions about repeated measures of continuous variables, which may be operationalized as time-varying covariates or outcomes.<h4>St  ...[more]

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